关键词：节能；智能；LED日光灯；PWM光调制
摘 要：The intelligent LED daylight lamp lighting control system is designed.According to the external light intensity,the control system which uses the PWM light modulation technology,ST89C52 Single Chip Microcontroller as the control system core,can adjust brightness of the LED daylight lamp automatically and accurately,and can also manually adjust the brightness.A comfortable lighting environment can created through the system for controlling the illumination source,the purpose of energy saving can be achieved.The control system which can be used for a variety of lighting situations has strong application value.